EP2808187B1 - Parabolic link - Google Patents

Parabolic link Download PDF

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Publication number
EP2808187B1
EP2808187B1 EP14001393.9A EP14001393A EP2808187B1 EP 2808187 B1 EP2808187 B1 EP 2808187B1 EP 14001393 A EP14001393 A EP 14001393A EP 2808187 B1 EP2808187 B1 EP 2808187B1
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EP
European Patent Office
Prior art keywords
parabolic
region
shaft
parabolic link
bead
Prior art date
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Active
Application number
EP14001393.9A
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German (de)
French (fr)
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EP2808187A1 (en
Inventor
Temmen Hubert
Torsten Bispink Dr.-Ing.
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schomacker Federnwerk GmbH
Original Assignee
Schomacker Federnwerk GmbH
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Publication of EP2808187A1 publication Critical patent/EP2808187A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/001—Suspension arms, e.g. constructional features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/02—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only
    • B60G11/10—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
    • B60G11/113—Mountings on the axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/26—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs
    • B60G11/28—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/32—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds
    • B60G11/34—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds including leaf springs
    • B60G11/46—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds including leaf springs and also fluid springs
    • B60G11/465—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds including leaf springs and also fluid springs with a flexible wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G9/00—Resilient suspensions of a rigid axle or axle housing for two or more wheels
    • B60G9/003—Resilient suspensions of a rigid axle or axle housing for two or more wheels the axle being rigidly connected to a trailing guiding device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/30—Rigid axle suspensions
    • B60G2200/31—Rigid axle suspensions with two trailing arms rigidly connected to the axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/12—Mounting of springs or dampers
    • B60G2204/126—Mounting of pneumatic springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/14—Mounting of suspension arms
    • B60G2204/148—Mounting of suspension arms on the unsprung part of the vehicle, e.g. wheel knuckle or rigid axle

Definitions

  • the invention relates to a Parabellenker with a provided on a Parabellenkerende rolled eye and with an eye opposite Parabellenkerend Scheme.
  • Parabellenker are important components for in particular commercial vehicle semitrailers and trailers, where air suspension systems with Parabellenkern have prevailed as far as possible. Parabellenker are, however, heavy components, and in recent years, strong efforts have been observed to reduce the energy required for the production of such Parabellenker and also to reduce the weight.
  • a Parabellenker is known with a between the Parabellenkerauge and the opposite Parabellenkerend Scheme oppositely bent intermediate region, wherein the Parabellenkerauge opposite Parabellenkerend Scheme tapers to its end with a rounded tip.
  • the cranked intermediate area is flattened so that it widened starting from the rolled eye. This serves in particular to widen bearing surfaces on which an axle body is to be clamped via U-shaped tie rods with end threads and fastening webs and nuts to be fastened thereto. This handlebar is thus a relatively heavyweight component.
  • a connecting rod for a torque arm which consists of at least two half-shells having at their ends in each case a bulge in the form of receiving eyes.
  • a connecting rod is not suitable to be used as a Parabellenker for axle.
  • the Parabellenker has an axle receiving area, which is rounded and can therefore accommodate rounded axle body.
  • This axle receiving area is provided with at least two fastening receptacles to be provided at a distance in the longitudinal direction of the parabolic arm, to which, for example, a U-shaped tie rod part with end threads and fastening nuts can be provided. Between these fastening receptacles, at least one bead is located, with which the contact surfaces of this axle receiving area to be provided in addition to the bead are to be widened with the same material used. This also broadens the eye.
  • This bead is provided centrally in the middle and aligned inwards from the outer surface of the parabolic arm in the direction of the axle body.
  • a bead can be arranged, which is directed away from the inner surface, ie the surface of the axle receiving area, which is turned to the axle to be fastened, towards the outer surface of the parabolic. It can also be provided inwardly, but also outwardly directed bead.
  • a parabola is generally indicated by 1, which has a flattened parabellenkerend Scheme 3 at its one Parabellenkerende a rolled eye 2 and the rolled end 2 opposite end.
  • the axle body 18 has an axle receiving portion 4, which is rounded with two mounting receivers 5 and 6, followed by the rounded axle receiving portion 6 two oppositely rounded areas 7.1 and 7.2, wherein the area 7.1, the rolled eye 2 and the area 7.2 has the flattened, substantially rectangular Parabellenkerend Scheme 3.
  • an inwardly directed to the axle body 18 to be fastened bead 8 and in the embodiment according to Fig.
  • Fig. 2 how out Fig. 2 can be seen, close to these contact surface areas 10 each formed tabs 11 laterally, through which the contact surfaces are to be attached to the axle to be fastened 18.
  • 2 beads 12 and 13 and 14 are also provided on the rolled eye.
  • the bead 12 runs centrally in the middle and then passes paragraph-free at 14 or 15 into the area 7.1.
  • the material thickness of the regions 7. 1 or 7. 2 decreases toward the rolled eye 2 or towards the flat end region 3.
  • This area 7.2 merges with a shoulder 16 and a spike 17 into the plate-shaped end area 3.
  • Fig. 3 is the mounted axle body 18 can be seen, which is to be clamped via tie rods 19 and nuts 20 with the parabola 1.
  • Fig. 4 is still apparent that the Parabellenker 1 may have a Anformung 21 in its Achsability Scheme 4, which generates a positive connection together with the axle 18.

Description

Die Erfindung bezieht sich auf einen Parabellenker mit einem an einem Parabellenkerende vorgesehenen gerollten Auge und mit einem dem Auge gegenüberliegenden Parabellenkerendbereich.The invention relates to a Parabellenker with a provided on a Parabellenkerende rolled eye and with an eye opposite Parabellenkerendbereich.

Parabellenker sind wichtige Bauteile für insbesondere Nutzfahrzeugauflieger und anhänger, bei denen sich Luftfederungssysteme mit Parabellenkern weitestgehend durchgesetzt haben. Parabellenker sind jedoch schwergewichtige Bauteile, wobei in den letzten Jahren starke Bemühungen zu beobachten waren, die für die Produktion solcher Parabellenker erforderlichen Energieaufwendungen zu verringern und auch das Gewicht zu reduzieren.Parabellenker are important components for in particular commercial vehicle semitrailers and trailers, where air suspension systems with Parabellenkern have prevailed as far as possible. Parabellenker are, however, heavy components, and in recent years, strong efforts have been observed to reduce the energy required for the production of such Parabellenker and also to reduce the weight.

Aus der EP 1 138 432 A2 ist ein Parabellenker bekannt mit einem zwischen dem Parabellenkerauge und dem gegenüberliegenden Parabellenkerendbereich gegensinnig abgekröpften Zwischenbereich, wobei der dem Parabellenkerauge gegenüberliegende Parabellenkerendbereich sich bis zu seinem Ende hin verjüngt mit einer abgerundeten Spitze. Der abgekröpfte Zwischenbereich ist geplättet ausgebildet, so dass er sich ausgehend von dem gerollten Auge verbreitert. Dies dient dazu, insbesondere Auflageflächen zu verbreitern, an denen ein Achskörper über U-förmige Zuganker mit Endgewinden und daran zu befestigenden Befestigungsstegen und - muttern zu verspannen. Dieser Lenker ist damit ein relativ schwergewichtiges Bauteil.From the EP 1 138 432 A2 a Parabellenker is known with a between the Parabellenkerauge and the opposite Parabellenkerendbereich oppositely bent intermediate region, wherein the Parabellenkerauge opposite Parabellenkerendbereich tapers to its end with a rounded tip. The cranked intermediate area is flattened so that it widened starting from the rolled eye. This serves in particular to widen bearing surfaces on which an axle body is to be clamped via U-shaped tie rods with end threads and fastening webs and nuts to be fastened thereto. This handlebar is thus a relatively heavyweight component.

Aus der US 2011/0227308 A1 , die den Oberbegriff des Anspruchs 1 offenbart, ist ein Parabellenker mit einem an einem Parabellenkerende vorgesehenen gerollten Auge und mit einem dem gerollten Auge gegenüberliegenden Parabellenkerendbereich bekannt, wobei zwischen dem Auge und dem gegenüberliegenden Parabellenkerendbereich ein gerundeter Achsaufnahmebereich vorgesehen ist zur Anordnung eines Achskörpers. In einer Ausgestaltung dieses Parabellenkers dieser Druckschrift ist vorgesehen, dass quer zur Längsrichtung des Parabellenkers eine sickenförmige Aufnahme in dem gerundeten Achsaufnahmebereich vorgesehen ist, in die eine nutenförmige Anformung des Achskörpers als Verdrehsicherung anzuordnen ist. Damit ist jedoch kein Parabellenker geschaffen, der in leichterer Bauweise größeren Beanspruchungen gerecht werden kann. Aus der DE 10 2009 049 400 A1 ist eine Verbindungsstange für eine Drehmomentenstütze bekannt, die aus wenigstens zwei Halbschalen besteht, die an ihren Enden jeweils eine Ausbuchtung in Gestalt von Aufnahmeaugen aufweist. Eine derartige Verbindungsstange ist jedoch nicht geeignet, als Parabellenker für Achskörper eingesetzt zu werden.From the US 2011/0227308 A1 DE 195595 A discloses a parabola driver with a rolled eye provided on a parabola cutter and with a parabolic bellmouth region opposite the rolled eye, a rounded axle receiving region being provided between the eye and the opposite parabolic bellmouth for arranging an axle body. In one embodiment of this Parabellenkers this document is provided that a bead-shaped receptacle is provided transversely to the longitudinal direction of the Parabellenkers in the rounded Achsaufnahmebereich into which a groove-shaped Anformung the axle body is to be arranged as rotation. However, this is not a Parabellenker created that can meet heavier loads in lighter construction. From the DE 10 2009 049 400 A1 is known a connecting rod for a torque arm, which consists of at least two half-shells having at their ends in each case a bulge in the form of receiving eyes. However, such a connecting rod is not suitable to be used as a Parabellenker for axle.

Es ist Aufgabe der vorliegenden Erfindung, einen Parabellenker derart weiterzubilden, dass er in leichterer Bauweise großen Beanspruchungen gerecht werden kann. Zur Lösung dieser Aufgabe ist ein Parabellenker der im Anspruch 1 genannten Art vorgesehen.It is an object of the present invention to develop a Parabellenker such that it can be met in a lighter design large stresses. To solve this problem, a Parabellenker the type mentioned in claim 1 is provided.

Damit hat der Parabellenker einen Achsaufnahmebereich, der gerundet ausgebildet ist und mithin gerundete Achskörper aufnehmen kann. Dieser Achsaufnahmebereich ist mit zumindest zwei mit Abstand in Längsrichtung des Parabellenkers vorzusehenden Befestigungsaufnahmen versehen, an denen ein z.B. U-förmiges Zugankerteil mit Endgewinden und Befestigungsmuttern vorgesehen werden kann. Zwischen diesen Befestigungsaufnahmen ist zumindest eine Sicke gelegen, mit der die neben der Sicke vorzusehenden Kontaktflächen dieses Achsaufnahmebereiches bei gleichem Materialeinsatz zu verbreitern sind. Damit ist auch das Auge insgesamt verbreitert. Diese Sicke ist zentral mittig vorgesehen und von der Außenfläche des Parabellenkers einwärts in Richtung auf den Achskörper hin ausgerichtet. Zusätzlich kann eine Sicke angeordnet werden, die von der Innenfläche, also der Fläche des Achsaufnahmebereiches, die zu dem zu befestigenden Achskörper gewandt ist, weg weisend hin zur Außenfläche des Parabellenkers gerichtet ist. Es kann auch eine einwärts, aber auch eine auswärts gerichtete Sicke vorgesehen sein. Durch die Sicke ist jedoch nicht nur der Parabellenker zu verbreitern. Vielmehr ist durch die Sicke auch die Festigkeit des Parabellenkers und damit die Fähigkeit, große Kräfte aufzunehmen, wesentlich erhöht. Insgesamt kann die Verbindung zwischen Achskörper und Parabellenlenker leichter ausgeführt werden, da wenige Verbindungselemente benötigt werden, was zu Kostenvorteilen führt. Gleichwohl ist ein Parabellenkerbauteil zur Verfügung gestellt, das großen Beanspruchungen gerecht werden kann.Thus, the Parabellenker has an axle receiving area, which is rounded and can therefore accommodate rounded axle body. This axle receiving area is provided with at least two fastening receptacles to be provided at a distance in the longitudinal direction of the parabolic arm, to which, for example, a U-shaped tie rod part with end threads and fastening nuts can be provided. Between these fastening receptacles, at least one bead is located, with which the contact surfaces of this axle receiving area to be provided in addition to the bead are to be widened with the same material used. This also broadens the eye. This bead is provided centrally in the middle and aligned inwards from the outer surface of the parabolic arm in the direction of the axle body. In addition, a bead can be arranged, which is directed away from the inner surface, ie the surface of the axle receiving area, which is turned to the axle to be fastened, towards the outer surface of the parabolic. It can also be provided inwardly, but also outwardly directed bead. By the beading, however, not only the Parabellenker is to widen. Rather, by the bead and the strength of the Parabellenkers and thus the ability to absorb large forces, significantly increased. Overall, the connection between the axle body and Parabellenlenker be made easier, because few fasteners are needed, which leads to cost advantages. Nevertheless, a Parabellenkerbauteil is provided, which can meet high loads.

Weitere vorteilhafte Ausgestaltungen ergeben sich aus weiteren Unteransprüchen, der weiteren Beschreibung und der Zeichnung. In der Zeichnung zeigen:

Fig. 1
in einer perspektivischen Darstellung ein erstes Ausführungsbeispiel des Parabellenkers nach der Erfindung mit einer oberen einwärts ausgerichteten Sicke im Achsaufnahmebereich;
Fig. 2
eine zu Fig. 1 analoge Darstellung in perspektivischer Ansicht in einer Ansicht von oben auf den unteren Bereich des Parabellenkers mit einer Sicke, die von der unteren Fläche des Parabellenkers wegweisend ausgerichtet ist im Achsaufnahmebereich;
Fig. 3
in einer perspektivischen Ansicht das Ausführungsbeispiel nach Fig. 1 mit montiertem Achskörper;
Fig. 4
eine Querschnittsdarstellung des Ausführungsbeispiels nach Fig. 3;
Fig. 5
eine Ansicht von oben auf das Ausführungsbeispiel nach Fig. 3;
Fig. 6
ausschnittsweise eine Seitenansicht auf das gerollte Auge des Ausführungsbeispiels nach Fig. 1, und
Fig. 7
ausschnittsweise in einer Ansicht von oben das gerollte Auge gemäß dem Ausführungsbeispiel nach Fig. 1.
Further advantageous embodiments will become apparent from further dependent claims, the further description and the drawings. In the drawing show:
Fig. 1
in a perspective view of a first embodiment of the parabola according to the invention with an upper inwardly directed bead in Achsaufnahmebereich;
Fig. 2
one too Fig. 1 analogous representation in perspective view in a view from above of the lower portion of the parabellene with a bead, which is oriented away from the lower surface of the parabellene in the axle receiving area;
Fig. 3
in a perspective view of the embodiment according to Fig. 1 with mounted axle body;
Fig. 4
a cross-sectional view of the embodiment according to Fig. 3 ;
Fig. 5
a top view of the embodiment according to Fig. 3 ;
Fig. 6
a detail of a side view of the rolled eye of the embodiment according to Fig. 1 , and
Fig. 7
fragmentary in a top view of the rolled eye according to the embodiment according to Fig. 1 ,

In dem Ausführungsbeispiel sind grundsätzlich übereinstimmende Teile mit übereinstimmenden Bezugsziffern versehen.In the embodiment, basically matching parts are provided with matching reference numerals.

In der Zeichnung ist allgemein mit 1 ein Parabellenker beziffert, der an seinem einen Parabellenkerende ein gerolltes Auge 2 und an dem gerollten Ende 2 gegenüberliegenden Ende einen abgeflachten Parabellenkerendbereich 3 aufweist. Zur Aufnahme des Achskörpers 18 hat er einen Achsaufnahmebereich 4, der gerundet ausgebildet ist mit zwei Befestigungsaufnahmen 5 und 6, wobei sich an den gerundeten Achaufnahmebereich 6 jeweils zwei gegensinnig gerundete Bereiche 7.1 und 7.2 anschließen, wobei der Bereich 7.1 das gerollte Auge 2 und der Bereich 7.2 den abgeflachten, im Wesentlichen rechteckförmigen Parabellenkerendbereich 3 aufweist. Zwischen den Befestigungsaufnahmen 5 und 6 ist in dem Ausführungsbeispiel nach Fig. 1 eine einwärts zu dem zu befestigenden Achskörper 18 hin ausgerichtete Sicke 8 und in dem Ausführungsbeispiel nach Fig. 2 an der Innenseite des Achsaufnahmebereiches 4 eine von dem zu befestigenden Achskörper 18 hin wegweisende Sicke 9 vorgesehen. Es ist möglich, dass die Sicken 8 und 9 in dem Achsaufnahmebereich 4 gemeinsam vorgesehen sind. Durch die Sicken 8 und 9 sind die Kontaktflächen 10 in dem Achsaufnahme 4 bei gleichem Materialeinsatz verbreitet, um der Querschnittsschwächung durch die Befestigungsaufnahmen 5 und 6 entgegenzuwirken.In the drawing, a parabola is generally indicated by 1, which has a flattened parabellenkerendbereich 3 at its one Parabellenkerende a rolled eye 2 and the rolled end 2 opposite end. To accommodate the axle body 18, it has an axle receiving portion 4, which is rounded with two mounting receivers 5 and 6, followed by the rounded axle receiving portion 6 two oppositely rounded areas 7.1 and 7.2, wherein the area 7.1, the rolled eye 2 and the area 7.2 has the flattened, substantially rectangular Parabellenkerendbereich 3. Between the fastening receptacles 5 and 6 is in the embodiment according to Fig. 1 an inwardly directed to the axle body 18 to be fastened bead 8 and in the embodiment according to Fig. 2 on the inside of Achsaufnahmebereiches 4 a pointing away from the axle to be fastened axle 18 towards bead 9 is provided. It is possible that the beads 8 and 9 are provided in the axle receiving portion 4 together. Through the beads 8 and 9, the contact surfaces 10 in the axle 4 with the same material used to the Cross-sectional weakening counteract by the fastening receptacles 5 and 6.

Wie aus Fig. 2 ersichtlich, schließen sich an diese Kontaktflächenbereiche 10 jeweils angeformte Lappen 11 seitlich an, durch die die Kontaktflächen an dem zu befestigenden Achskörper 18 zu vergrößern sind. Wie aus den Zeichnungen ersichtlich ist, sind auch an dem gerollten Auge 2 Sicken 12 bzw. 13 und 14 vorgesehen. Die Sicke 12 läuft zentral mittig und geht dann absatzfrei bei 14 bzw. 15 in den Bereich 7.1 über. Weiter ist auch ersichtlich, dass die Materialdicke der Bereiche 7.1 bzw. 7.2 zu dem gerollten Auge 2 bzw. zu dem platten Endbereich 3 hin abnimmt. Dieser Bereich 7.2 geht mit einem Absatz bei 16 und einem Dorn 17 in den plattenförmigen Endbereich 3 über.How out Fig. 2 can be seen, close to these contact surface areas 10 each formed tabs 11 laterally, through which the contact surfaces are to be attached to the axle to be fastened 18. As can be seen from the drawings, 2 beads 12 and 13 and 14 are also provided on the rolled eye. The bead 12 runs centrally in the middle and then passes paragraph-free at 14 or 15 into the area 7.1. It can also be seen that the material thickness of the regions 7. 1 or 7. 2 decreases toward the rolled eye 2 or towards the flat end region 3. This area 7.2 merges with a shoulder 16 and a spike 17 into the plate-shaped end area 3.

In Fig. 3 ist der montierte Achskörper 18 ersichtlich, der über Zuganker 19 und Muttern 20 mit dem Parabellenker 1 zu verspannen ist. Aus Fig. 4 ist noch ersichtlich, dass der Parabellenker 1 eine Anformung 21 in seinem Achsaufnahmebereich 4 aufweisen kann, der zusammen mit dem Achskörper 18 einen Formschluss erzeugt.In Fig. 3 is the mounted axle body 18 can be seen, which is to be clamped via tie rods 19 and nuts 20 with the parabola 1. Out Fig. 4 is still apparent that the Parabellenker 1 may have a Anformung 21 in its Achsaufnahmebereich 4, which generates a positive connection together with the axle 18.

Claims (12)

  1. Parabolic link (1) comprising a rolled eye (2) provided on a parabolic link end, and comprising a parabolic link end region (3) opposite the rolled eye (2), a rounded shaft-receiving region (4) being provided, between the eye (2) and the opposing parabolic link end region (3), for arranging a shaft body (18), and the shaft-receiving region (4) comprising at least one bead (8) positioned between two fastening receptacles (5, 6) for fastening the shaft body (18) to the parabolic link (1), characterised in that the at least one bead (8) positioned between the at least two fastening receptacles (5, 6), which are spaced apart in the longitudinal direction of the parabolic link (1), is positioned centrally between the two fastening receptacles (5, 6), by means of which bead the contact surfaces (10) of the shaft-receiving region (4) which are to be provided adjacently to the bead (8), as well as an eye (7), are to be widened while using the same amount of material, and in that the bead (8) positioned centrally between the two fastening receptacles (5, 6) extends inwards from an outer surface of the shaft-receiving region (4) and towards the shaft body (18) which is to be fastened.
  2. Parabolic link (1) according to claim 1, characterised in that a bead (9) positioned between the two fastening receptacles (5, 6) extends outwards from an inner surface of the shaft-receiving region (4) and towards the shaft body (18) which is to be fastened.
  3. Parabolic link (1) according to either claim 1 or claim 2, characterised in that a projection (21) is provided on an inner contact surface (16) of the shaft-receiving region (4), which projection creates a positive engagement with the parabolic link (1) when the shaft body (18) is mounted.
  4. Parabolic link according to any of claims 1 to 3, characterised in that the shaft-receiving region (4) transitions into two regions (7.1, 7.2), rounded in opposite directions in each case, one region comprising the rolled eye (2) that is provided, and the other region comprising the parabolic spring end region (3), and the material thicknesses of the two regions (7.1, 7.2) decreasing towards the rolled eye (2) and towards the parabolic link end region (3) located opposite the eye (2).
  5. Parabolic link according to any of claims 1 to 4, characterised in that the rolled eye (2) has a bead (12, 13, 14) at least in regions.
  6. Parabolic link according to claim 5, characterised in that the at least one bead (12) is provided centrally in the rolled eye.
  7. Parabolic link according to either claim 5 or claim 6, characterised in that the at least one bead (12) transitions in a stepless manner into the region between the shaft-receiving region (4) and the rolled end (2).
  8. Parabolic link according to any of claims 1 to 7, characterised in that more than one bead (12, 13, 14) is provided in the rolled eye (2).
  9. Parabolic link according to claim 8, characterised in that two or three beads are provided in the rolled eye.
  10. Parabolic link according to any of claims 1 to 9, characterised in that the parabolic link end region (3) opposite the rolled eye (2) is substantially rectangular compared with the region (7.2) between the parabolic link end region (3) and the shaft-receiving region (4), and is spaced from the underside of the upstream region (7.2) of the parabolic link (1).
  11. Parabolic link according to claim 10, characterised in that the region between the shaft-receiving region (4) and the parabolic link end region (3) transitions into the parabolic link end region (3) via a step (16) and via a thorn-shaped moulding (17).
  12. Parabolic link according to any of claims 1 to 11, characterised in that the shaft-receiving region (4) is provided, on the contact surface (10) thereof which faces the shaft body (18) to be fastened, with integral lateral tabs (11) for enlarging the contact surface.
EP14001393.9A 2013-05-27 2014-04-16 Parabolic link Active EP2808187B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013008877.1A DE102013008877A1 (en) 2013-05-27 2013-05-27 parable link

Publications (2)

Publication Number Publication Date
EP2808187A1 EP2808187A1 (en) 2014-12-03
EP2808187B1 true EP2808187B1 (en) 2018-07-11

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DE (1) DE102013008877A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016102133A1 (en) * 2016-02-08 2017-08-10 Saf-Holland Gmbh transaxle
NL2021646B1 (en) * 2018-09-17 2020-05-07 Vdl Weweler Bv Trailing arm having a hammerhead for an air-sprung wheel axle suspension of a vehicle

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Publication number Priority date Publication date Assignee Title
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